
Formatting a disk for Windows computers
You can use Disk Utility to format a disk for Windows computers. You can choose one of several MS-DOS formats.
WARNING: Formatting a disk erases its files. Copy files you want to save to another disk before formatting the disk.
- In Disk Utility, select the disk you want to format for Windows computers.
- Click Erase and choose MS-DOS File System from the Volume Format pop-up menu.
- Type a name for the disk.
The name's maximum length is 11 characters.
- Click the Erase button, then click Erase again.
You can also choose to partition a disk using a Windows partition scheme which formats the partitions in MS-DOS format.